The word prana is a combination of two syllables, pra and na. Pranadenotes constancy, it is a force in constant motion. Prana is the vital life force and pranayama is the process by which the internal pranic store is increased. Pranayama is composed of the words prana and ayama, which means ‘pranic capacity or length.’ It is not merely breath control, but a technique through which the quantity of prana in the body is activated to a higher frequency.